Hello all, Let me first congratulate you all for this wonderfull forum and all his members. I want to build a spectrum analyzer like this ( Arduino with WS2801 / Spectrum Analyzer - YouTube ). I have an Arduino Mega, microphone with pre-amp and some WS2811 leds. I have managed to get the spectrum …

Arduino + MIC + FFT + WS2811 Leds Spectrum analyzer

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